Former U.S. National Security Advisor John Bolton expressed this opinion in an interview with Espreso TV."I have never believed that Ukraine should agree to a ceasefire along the current front line followed by negotiations. I have been convinced of this for a long time because, even if Putin doesn't admit it, it is Russia that would gain the most from such a scenario. Establishing a ceasefire on the current line of contact would give Moscow the opportunity to freeze the conflict, prolonging negotiations devoid of real substance and a final outcome, and gradually transform this front line into a new de-facto border between Russia and Ukraine," Bolton commented.According to him, this poses a serious risk for Ukraine, and the government must consider it with the utmost attention."The current goal should not be to prepare for negotiations, but to change the military balance in Ukraine's favor. Only such a change will force Moscow to genuinely seek negotiations. As long as Russian troops are advancing, even slowly and at the cost of enormous losses, the conflict will continue. Without a superiority of force, the situation will not change," stressed the former advisor to Trump.On November 20, it was reported that U.S. President Donald Trump approved a 28-point peace plan for settlement between Russia and Ukraine. The plan was developed by high-ranking officials in his administration over recent weeks in consultation with Russian envoy Kirill Dmitriev and Ukrainian representatives.